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Davis BIO 225 (Lab) > The Microscope > Flashcards

Flashcards in The Microscope Deck (18)
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1

This lens forms the initial image of the specimen

Real Image

2

This lens forms the magnified image that is received by the retina and perceived by the brain.

Virtual Image

3

The ability to see two items as separate and discrete units rather than a fuzzy overlapped single image.

Resolution

4

What is the formula for calculating total magnification?

Power of objective lens x power ocular lens = Total Magnification

5

What two things are required to achieve resolution

Oil and light of short wavelength

6

Power of the Scanning Objective

4x

7

Power of the low power objective

10x

8

Power of the High Dry objective

40x

9

Power of the Oil Objective

100x

10

What is the correct order for the pathway that light takes through a microscope

Light source, Illuminator,condenser, specimen, objective lens and ocular lens

11

Magnifies the specimen by varying levels

Objective Lens

12

Magnifies the specimen by 10

Ocular Lens

13

Serves as the base that holds the specimen

Stage

14

Moves the stage in large increments to bring the specimen into focus

Course Focus

15

Moves the stage in small increments to bring the specimen into focus

Fine Focus

16

Controls the amount of light that passes through the condenser

Iris Diaphragm

17

Projects light upward from the light source of the microscope

Illuminator

18

Collects and focus light from the illuminator to the specimen.

Condenser